;; quail/indian.el -- Quail packages for inputting Indian ;; Copyright (C) 2000, 2001 Free Software Foundation, Inc. ;; Author: KAWABATA, Taichi ;; Keywords: multilingual, input method, Indian, Devanagari ;; This file is part of GNU Emacs. ;; GNU Emacs is free software; you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation; either version 2, or (at your option) ;; any later version. ;; GNU Emacs is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with GNU Emacs; see the file COPYING. If not, write to the ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, ;; Boston, MA 02111-1307, USA. ;;; Commentary: ;; History: ;; 2000.12.12 ;; Totally re-written from devanagari.el to handle multiple Inidan Scripts. ;;; Code: (require 'cl) (require 'quail) (require 'devan-util) (require 'ind-util) (defun quail-indian-preceding-char-position (position) "Return the position of preceding composite character." (let (prec-composed) (if (char-valid-p (char-before position)) ;; range o.k. (if (setq prec-composed (find-composition (1- position))) (car prec-composed) (1- position)) nil))) (defvar quail-indian-update-preceding-char nil) (make-variable-frame-local 'quail-indian-update-preceding-char) ;;; update function ;; CONTROL-FLAG is integer (n) ;; quail-current-key :: keyboard input. ;; Only first n can be translated. ;; quail-current-string :: corresonding string. Translated when last ;; time CONTROL-FLAG is nil. ;; todo :: (1) put last (len-n) char to unrread-command-event. ;; (2) put translated string to quail-current-string. ;; ;; CONTROL-FLAG is t (terminate) or nil (proceed the translation) ;; quail-current-key :: keyboard input. ;; quail-current-string :: corresponding string. Created by database. ;; todo :: (1) put modified translated string to quail-current-string. (defun quail-indian-update-translation (control-flag) ;;(message "input control-flag=%s, string=%s, key=%s" ;; control-flag quail-current-str quail-current-key) ;; make quail-current-str string when possible. (if (char-valid-p quail-current-str) (setq quail-current-str (char-to-string quail-current-str))) ;; reset quail-indian-update-preceding-char if it's initial. (if (= (overlay-start quail-overlay) (overlay-end quail-overlay)) (setq quail-indian-update-preceding-char nil)) ;; set quial-indian-update-preceding-char if appropriate. (let* (prec-char-position composition-regexp prec-char-str candidate-str match-pos match-end) (when (and quail-current-str (null input-method-use-echo-area) (null input-method-exit-on-first-char) (setq prec-char-position (quail-indian-preceding-char-position (overlay-start quail-overlay))) (setq composition-regexp (if prec-char-position (caar (elt composition-function-table (char-after prec-char-position))))) ;; (null quail-indian-update-preceding-char) (setq prec-char-str (buffer-substring prec-char-position (overlay-start quail-overlay)) candidate-str (concat prec-char-str quail-current-str) match-pos (string-match composition-regexp candidate-str) match-end (match-end 0)) (> match-end (length prec-char-str))) (setq quail-indian-update-preceding-char prec-char-str) (delete-region prec-char-position (overlay-start quail-overlay)))) ;; make quail-current-str string when possible. (if (null quail-current-str) (setq quail-current-str "")) ;; set quail-current-str unless control-flag is number. (if (numberp control-flag) (setq quail-indian-update-preceding-char nil quail-current-str (if (equal quail-current-str "") (substring quail-current-key 0 control-flag) (indian-compose-string quail-current-str)) unread-command-events (string-to-list (substring quail-current-key control-flag))) (if quail-indian-update-preceding-char (setq quail-current-str (concat quail-indian-update-preceding-char quail-current-str))) (setq quail-current-str (indian-compose-string quail-current-str))) (when (eq t control-flag) ;; reset preceding-char if translation is terminated. (setq quail-indian-update-preceding-char nil)) ;; compose to previous char if it looks possible. ;;(message " out control-flag=%s, string=%s, key=%s" ;; control-flag quail-current-str quail-current-key) control-flag) ;;; ;;; Input by transliteration ;;; (defun quail-define-indian-trans-package (hashtbls pkgname lang title doc) (funcall 'quail-define-package pkgname lang title t doc nil nil nil nil nil nil t nil 'quail-indian-update-translation) (maphash '(lambda (key val) (quail-defrule key (if (= (length val) 1) (string-to-char val) (vector val)))) (cdr hashtbls))) ;; ;; (quail-define-package "devanagari-itrans" "Devanagari" "DevIT" t "Devanagari ITRANS") (quail-define-indian-trans-package indian-dev-itrans-v5-hash "devanagari-itrans" "Devanagari" "DevIT" "Devanagari transliteration by ITRANS method.") ;; (quail-define-package "devanagari-kyoto-harvard" "Devanagari" "DevKH" t "Devanagari Kyoto-Harvard") (quail-define-indian-trans-package indian-dev-kyoto-harvard-hash "devanagari-kyoto-harvard" "Devanagari" "DevKH" "Devanagari transliteration by Kyoto-Harvard method.") ;; (quail-define-package "devanagari-aiba" "Devanagari" "DevAB" t "Devanagari Aiba") (quail-define-indian-trans-package indian-dev-aiba-hash "devanagari-aiba" "Devanagari" "DevAB" "Devanagari transliteration by Aiba-method.") ;;; ;;; Input by Inscript ;;; (defun flatten-list (lst) "Flatten the nested LIST so that there would be no innner list." (if (listp lst) (apply 'append (mapcar 'flatten-list lst)) (list lst))) (defun quail-define-inscript-package (char-table key-table pkgname lang title docstring) (setq char-table (flatten-list char-table)) (setq key-table (flatten-list key-table)) (funcall 'quail-define-package pkgname lang title nil docstring nil nil nil nil nil nil nil nil 'quail-indian-update-translation ) (mapcar* '(lambda (key val) (and key val (quail-defrule (if (char-valid-p key) (char-to-string key) key) (if (stringp val) (vector val) val)))) key-table char-table)) ;; (defvar inscript-dev-keytable '( (;; VOWELS (18) (?D nil) (?E ?e) (?F ?f) (?R ?r) (?G ?g) (?T ?t) (?+ ?=) ("F]" "f]") (?! ?@) (?Z ?z) (?S ?s) (?W ?w) (?| ?\\) (?~ ?`) (?A ?a) (?Q ?q) ("+]" "=]") ("R]" "r]")) (;; CONSONANTS (42) ?k ?K ?i ?I ?U ;; GRUTTALS ?\; ?: ?p ?P ?} ;; PALATALS ?' ?\" ?\[ ?{ ?C ;; CEREBRALS ?l ?L ?o ?O ?v ?V ;; DENTALS ?h ?H ?y ?Y ?c ;; LABIALS ?/ ?j ?J ?n ?N "N]" ?b ;; SEMIVOWELS ?M ?< ?m ?u ;; SIBILANTS "k]" "K]" "i]" "p]" "[]" "{]" "H]" "/]" ;; NUKTAS ?% ?&) (;; Misc Symbols (7) ?X ?x ?_ ">]" ?d "X]" ?>) (;; Digits ?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9) (;; Inscripts ?# ?$ ?^ ?* ?\]))) ;; (quail-define-package "devanagari-inscript" "Devanagari" "DevIS" t "Devanagari keyboard Inscript") (quail-define-inscript-package indian-dev-base-table inscript-dev-keytable "devanagari-inscript" "Devanagari" "DevIS" "Devanagari keyboard Inscript.") ;; quail/indian.el ends here.